32001002121 has 16 divisors (see below), whose sum is σ = 48048427008. Its totient is φ = 18768915600.

The previous prime is 32001002083. The next prime is 32001002213. The reversal of 32001002121 is 12120010023.

It is not a de Polignac number, because 32001002121 - 2⁶ = 32001002057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32001002097 and 32001002106.

It is not an unprimeable number, because it can be changed into a prime (32001004121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15639741 + ... + 15641786.

It is an arithmetic number, because the mean of its divisors is an integer number (3003026688).

Almost surely, 2^32001002121 is an apocalyptic number.

32001002121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32001002121 is a deficient number, since it is larger than the sum of its proper divisors (16047424887).

32001002121 is a wasteful number, since it uses less digits than its factorization.

32001002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31281572.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 32001002121 its reverse (12120010023), we get a palindrome (44121012144).

The spelling of 32001002121 in words is "thirty-two billion, one million, two thousand, one hundred twenty-one".